[COFF, ARM64] Add _InterlockedCompareExchangePointer_nf intrinsic

Reviewers: rnk, mstorsjo, compnerd, TomTan, haripul, efriedma

Reviewed By: efriedma

Subscribers: efriedma, kristof.beyls, chrib, jfb, cfe-commits

Differential Revision: https://reviews.llvm.org/D52807

llvm-svn: 343881

1 files changed, 15 insertions, 0 deletions

diff --git a/clang/test/CodeGen/ms-intrinsics.c b/clang/test/CodeGen/ms-intrinsics.c
index bc0b46fc405..bfc182f26bd 100644
--- a/clang/test/CodeGen/ms-intrinsics.c
+++ b/clang/test/CodeGen/ms-intrinsics.c
@@ -235,6 +235,21 @@ void *test_InterlockedCompareExchangePointer(void * volatile *Destination,
 // CHECK:   ret i8* %[[RESULT:[0-9]+]]
 // CHECK: }
 
+void *test_InterlockedCompareExchangePointer_nf(void * volatile *Destination,
+                                             void *Exchange, void *Comparand) {
+  return _InterlockedCompareExchangePointer_nf(Destination, Exchange, Comparand);
+}
+
+// CHECK: define{{.*}}i8* @test_InterlockedCompareExchangePointer_nf(i8** {{[a-z_ ]*}}%Destination, i8* {{[a-z_ ]*}}%Exchange, i8* {{[a-z_ ]*}}%Comparand){{.*}}{
+// CHECK:   %[[DEST:[0-9]+]] = bitcast i8** %Destination to [[iPTR]]*
+// CHECK:   %[[EXCHANGE:[0-9]+]] = ptrtoint i8* %Exchange to [[iPTR]]
+// CHECK:   %[[COMPARAND:[0-9]+]] = ptrtoint i8* %Comparand to [[iPTR]]
+// CHECK:   %[[XCHG:[0-9]+]] = cmpxchg volatile [[iPTR]]* %[[DEST:[0-9]+]], [[iPTR]] %[[COMPARAND:[0-9]+]], [[iPTR]] %[[EXCHANGE:[0-9]+]] monotonic monotonic
+// CHECK:   %[[EXTRACT:[0-9]+]] = extractvalue { [[iPTR]], i1 } %[[XCHG]], 0
+// CHECK:   %[[RESULT:[0-9]+]] = inttoptr [[iPTR]] %[[EXTRACT]] to i8*
+// CHECK:   ret i8* %[[RESULT:[0-9]+]]
+// CHECK: }
+
 char test_InterlockedExchange8(char volatile *value, char mask) {
   return _InterlockedExchange8(value, mask);
 }